we can't afford four more years of president obama! ( cheers and applause ) >> reporter: romney has based his campaign on the economy, but if ohio, the economic picture has been improving. after hitting a high of 10.6% three years ago, unemployment has been at 7.2% for three straight months. the national average is 8.1%. outside dayton, romney also talked about how his plan to pursue new trade agreements will help people in the state. >> the people in ohio can sell products anywhere in the world, and we can compete with anywhere in the world. i'm not afraid of trading with other nations. i understand that when we trade and when other nations trade on a fair basis we will complete, we will win, we'll raise wages here, we'll create jobs. >> reporter: with the election possibly in the balance in ohio, both sides are campaigning hard. both candidates have been here 13 times this year and they will both be here tomorrow. >> here in ohio we're not better off under president obama. >> reporter: they're also flooding the airwaves with televisi